EIGHT POINT OIL & GAS 

The Down Hole Blow Out Preventer can be activated via:

i. external metal shield ring release sub-system

ii. metal peg release sub-system

iii. rim release sub-system

iv. weld release sub-system 

The Petroleum Engineer will decide which type of release sub-system that he would prefer to hold the pressure deflector ring in place until the safety threshold pressure is reached.